1) Capacity: 128MB,256MB, 512MB, 1G, 2G, 4G 2) Both USB 1.1 and 2.0 available Production Description of USB bracelet : (1) Material :100% silicon rubber ,harmless for body ,Green material(2) Bracelet size : 208mm circumference*18mm width*2mm (3) Embossed text ,Debossed text and Printed text on bracelets are as buyers requirement (4) Capacity: 256, 512MB, 1G, 2G, 4G(5) Both USB 1.1 and 2.0 ...